Improvement in tuyeres



J. H. GARTSIDE.

Improvement in Tljyeres.

No. 131,750. Patented Oct-1, 1872.

Fig '1. SOALE' mm EQUAL To In wrm'zsszs. 0% fi 'l NVENTD H.

JOSEPH H. eniars'inn, or PITTSBURG, PENNSYLVANIA, ASSIGNO'R or oNE- 5 HALF HIS RIGHT T0 JOHN B. GEYSER, OF SAME PLACE.

"IMiROVEM ENT IN TUYERES.

Specification forming part of Letters Patent No. 131,750, dated October 1, 1872.

T 0 all whom it may concern:

Beit known that I, J osEPH H. GARTsIDE, of the city of Pittsburg, county of Allegheny and State of Pennsylvania, have invented certain Improvements in Tuyeres for Blackiron at all times, as well as the obtaining of a direct blast from the bottom of the 'fire,and allowing the same to be cleaned with greater ease by the workman. To accomplish this-I have added to the ordinary tube into which the bellows'nozzle or blast-pipe fits a second tube, which the first strikes at an angle a short distance below the fire bed or box. This angle may be of any number of degrees, although I prefer it at twenty-five. At the upper end of this tube, a short distance from the connection of the two, is the firebed or bottom-plate of the fire. This plate is made of any desired size, and is thicker on the back than at the front, so as to produce a slope and allow the clinker and refuse to settle at the front edge. The edge of the bed-plate is squared off all round, so as to suit to an ordinary-sized brick. Any number of sides can thusbe' put upon the plate, but six sides will ordinarily be enough; These edges are sloped from the outside of the top of the plate inward to the bottom thereof, so as to give the bricks placed around it a cant and make the nest in which the fire is placed larger at the top of the bricks than at the bottom. The opening in the attached tube can be of any desired shape; but I prefer it of an oblong square. This opening increases in size from the discharge in the bed-plate to the other end, so thatan'y dust or clinker that may pass into it out of the fire shall have an unobstructed passage to the bottom or end below.

I Attached to the lower end is a small flap or door-valve, hinged, so that at the will of the workman it can be closed or opened.

In the accompanying drawing, Figure 1 is a vertical side sectional view of my invention, showing the tuyere in position; and Fig. 2 is a topview of the tuyere, showing the shape of the fire-bed plate.

The same letters of reference apply to both.

A is the round tube or pipe into which the nozzle of the bellows or blast-pipe fits. 1t tapers to a smaller size, until it strikes and enters the second tube set at any required angle, and marked 13. The passage in the said tube tapers onupward. until it makes its exit in the bed-plate O. This bed-plate has its edges 0 squared, so that the corners will be apart the'width of an ordinary brick, and has a slope to the front marked a b, to allow rcfuse to slide in that direction and accumulate V in front of the opening by which the blast euters the fire. At the bottom of the tube B is a flap or door-valve, D, attached to the tube by thehinge cl, and having an arm, 0, to which a cord, F, is fastened. The said cord passes up along the side of the forge and through two eyelets or other analogous arrangement, and has at its other end a weight, E, which, when hanging free, keeps the said door-valve D closed.

The tuyerebeing in place, and the fire in order, the workman allows the weight E to hang free, which closes the door-valve D. The blast beingput on, the air rushes through the opening G in bed-plate ,O, and gives him his heat. Should any dustor clinker get into this opening it passes down the tube B and accumulates against the doorvalve. Cinder in a fluid state runs along the incline a b and accumulates at the front edge of the fire-bed. Should the workmen desire to leave the fire for other work, he lifts the weight E and places it upon the forge, thus relieving the door-valve D, which by its own gravity falls open, and the dust escapes out of the tube, while at the same time a natural draft of air is introduced into the fire-nest, preventing it from going out,

and not allowing any gas to pass from the fire into the bellows, to their detriment. Should the clinker accumulate too much on the front of the incline the workman must clean it off but at most this will be necessary but once or twice a day, instead of .every hour, as is usual in ordinary fires. The blast being forced into the bottom of the fire, there is no chance for the sulphur in the coal to act upon the iron and spoil it, and good welding heats can be obtained without the use of sand or other acoessories. These advantages havelboen practically proven.

I make no claim to the tapering round tube A, for the reception of the nozzle of the bellows or blast, for that is in common use; but

I claim as my invention- 1. The angular fire-bed plate 0, the slope a I), and beveled edges 0 0 at the upper end of the tube B, substantially as and for the purposes hereinbefore set forth.

JOSEPH H. GARTSIDE. [L. 5.]

Witnesses:

JOHN B. GEYsER, WILLIAM N. G-ARTSIDE. 

